I was getting this same error. As the OP mentioned, this error is from using a query inside a view's init(){}. In my case, I just wanted to get the query count (for debugging purposes) and was attempting to access the value within the view 's init(){}. I moved my print statement to the .onAppear() for my view and everything works great!

Based on the "added items that can run in background" message you're receiving, you may need to check Xcode to see if your project is set for background tasks to update your app. Here's the documentation for adding background tasks. Double check your app against this documentation to see if that's the issue. Tasks running in the background is common for apps that require updating user content based on outside factors. If your app is being added as a login item as indicated in your title, you may find the documentation on SMAppService helpful. This shows how to make your app launch on system login. Make sure your app is not using this service to give you the unexpected login item message.

I'm having this same issue on Xcode 12.3 and Big Sur 11.1. Simplest work around I found for MacBook Pro: Quit Xcode and simulator Unplug power cable Restart Xcode and simulator Check storyboard or simulator to confirm yellow tint is gone Reconnect in power cable This seems to work as long as Xcode remains open. TLDR: make sure power cable is disconnected from MacBook before starting Xcode. Once started, power can be connected without issue.